Originally Posted by Blueboost
QR's have proven reliable @ 8psi or less.
on a t3/t4 mind you....equating to about 270-280whp. Torque is the bigger issue here though. Once torque/hp surpasses 300whp, the con-rods bend like rubber pencils.
and the pistons don't help much either.
My dream: a QR20DE boosted, or a majorly destroked QR25 to about 2.2L....8000rpm, GT35R turbo.